Piper SENECA III - Page 287

PIPER
AIRCRAFT
CORPORATION
SECTION
9
PA-34-220T,
SENECA
III
SUPPLEMENT 5
(3)
Check
that
the
pilot\
emergency
disconnect
switch
disconnects
the
autopilot.
(4)
Perform
the
following
manual electric
pitch
trim checks:
a.
Actuate
the
left-side switch
to
the
fore
and
aft
positions.
The
trim
solenoid
should
engage,
but
the
trim should
not
run.
(Solenoid
engagement
may
be
confirmed
by
addi-
tional
force
required
to
move
trim
wheel,)
b. Actuate
the
right-side
switch
to
the
fore
and
aft
positions.
The
trim
solenoid
should
not
engage
and
the
trim
should
not
run.
c.
Grasping
the
manual
trim
wheel,
run
the trim both
up
and
down
and
check
the
overpower
capability.
d.
Press
the
AP
DISC
TRIM
INTERRUPT
switch
down
and
hold.
The
manual
electric
pitch
trim will
not operate
either
up or
down.
e.
Set
manual
trim
for
takeoff.
(5)
Daily
preflight
check
(must
be
performed prior
to
first flight
of
the
day)
a.
Engage
the
AP
and
put
in
a
pitch (U P)
command
using
the
vertical trim
switch
on
Mode Controller. Hold
the
control column
to
keep
it
from
moving
and observe the
autotrím
run
in
the
nose-up
direction
after approximately
three
seconds
delay.
Use
the
vertical trim switch and
put
in
a
pitch
(DN)
command.
Hold the
control column and
observe
the
autotrim
run
in
the nose-down
direction
after
approximately 3
seconds
delay.
b.
Engage
the
HDG mode
and the
AP. Set
the
HDG
bug
to
command
a
right
turn.
The
control wheel
will
rotate
clock-
wise,
Set the
H
DG bug
to
command
a
left turn..The
control
wheel
will
rotate
counterclockwise.
c.
Run
manual
electric
trim
from
full
nose up
to
full
nose
down.
Time
required
should be
39
±5
seconds.
CAUTION
Disengage
the
AP
and
check
that the
airplane
manual
pitch
trim
is
in
the
takeoff position
prior
to
takeoff,
ISSUED:
APRIL 21,
1981
REPORT: VB-1110
REVISED:
FEBRUARY
25,
1982
9
of
16,
9-41